YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1932 | 11.32 | 22.14 | 18.90 | 34.93 | 47.03 | 53.34 | a | 62.60 | a | 59.81 | 49.54 | b | 32.40 | a | 24.21 | a | 7.16 | 35.28 | ||||||||
1933 | 14.81 | 9.29 | 25.52 | 31.27 | 44.23 | 56.57 | 61.39 | 58.42 | 52.13 | 35.87 | a | 26.30 | 22.55 | 36.53 | ||||||||||||
1934 | 19.87 | 24.07 | 26.97 | 35.31 | a | 48.48 | 55.23 | 61.35 | 60.55 | 44.93 | 39.13 | h | 25.00 | w | 16.16 | 39.29 | b | |||||||||
1935 | 18.16 | 22.43 | 28.10 | 33.63 | 41.71 | 52.10 | 60.33 | a | 59.06 | ----- | z | ----- | z | ----- | z | ----- | z | 39.44 | d | |||||||
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | 30.62 | f | 45.26 | 58.11 | c | 58.45 | b | 54.27 | e | 46.31 | d | 34.43 | a | 19.00 | 15.77 | 41.45 | d | |||
1957 | 9.29 | 20.54 | d | 25.38 | b | 32.13 | 43.23 | 49.80 | 58.10 | 56.07 | b | 41.48 | a | 38.20 | a | 22.82 | h | 14.79 | b | 35.36 | a | |||||
1958 | 10.71 | 19.56 | a | 21.03 | 29.93 | 46.27 | a | 52.14 | b | 55.61 | 54.90 | b | 48.03 | 33.29 | 20.57 | 17.00 | 34.09 | |||||||||
1959 | 10.17 | a | 16.32 | 20.03 | 28.20 | 43.48 | 53.43 | b | 53.69 | b | 56.40 | k | 44.53 | 31.73 | a | 17.37 | 16.52 | b | 30.50 | a | ||||||
1960 | 8.77 | 10.41 | 20.71 | 35.00 | a | 41.81 | 52.23 | 55.44 | m | 56.00 | 47.33 | 37.75 | c | 22.00 | 14.13 | 31.47 | a | |||||||||
1961 | 13.06 | 19.32 | 25.50 | a | 30.43 | 43.65 | 51.29 | m | 55.90 | a | 56.68 | 43.04 | b | 31.32 | i | 20.67 | 9.10 | a | 31.73 | b | ||||||
1962 | 3.84 | 19.75 | 19.03 | 34.13 | 43.87 | 50.70 | 56.53 | a | 55.36 | i | 46.46 | d | 36.32 | c | 24.73 | 17.00 | 32.03 | a | ||||||||
1963 | 0.93 | a | 18.04 | 23.26 | 33.48 | a | 45.34 | b | 52.64 | b | 60.45 | 58.77 | a | 51.96 | b | 41.05 | i | 22.67 | 9.26 | 34.25 | a | |||||
1964 | 10.77 | 9.90 | 15.94 | 30.72 | a | 43.23 | 52.83 | a | 61.00 | b | 54.68 | 47.48 | a | 32.54 | g | 22.04 | b | 13.03 | 32.87 | a | ||||||
1965 | 15.23 | 11.36 | 14.66 | b | 35.14 | a | 43.17 | a | 52.04 | c | 58.33 | a | 53.29 | 43.37 | 34.71 | g | 25.24 | a | 18.24 | b | 33.64 | a | ||||
1966 | 5.90 | 14.25 | 22.64 | c | 30.37 | 41.10 | 51.96 | c | 63.14 | c | 55.68 | 49.00 | c | 33.75 | g | 23.93 | a | 10.03 | 33.46 | a | ||||||
1967 | 13.45 | 14.93 | a | 25.17 | a | 33.87 | 39.57 | a | 51.37 | 58.65 | 53.66 | b | 45.73 | 34.67 | g | 19.70 | 9.84 | 33.27 | a | |||||||
1968 | 10.55 | b | 16.83 | 22.13 | 26.30 | 38.73 | a | 51.78 | c | 57.29 | 54.38 | b | 43.59 | a | 36.25 | g | 21.27 | 10.35 | 32.11 | a | ||||||
1969 | 15.16 | 16.43 | 15.84 | 34.97 | 45.39 | 48.93 | 58.50 | a | 57.81 | 49.68 | b | 31.52 | h | 19.80 | 16.29 | 34.44 | a | |||||||||
1970 | 9.03 | a | 16.15 | b | 18.35 | 26.34 | a | 40.71 | 48.87 | 58.30 | a | 56.94 | 43.17 | g | 30.88 | f | 21.87 | 12.23 | a | 30.88 | b | |||||
1971 | 10.32 | 15.36 | 18.76 | b | 31.74 | c | 38.93 | b | 51.83 | a | 54.81 | 53.87 | a | 40.60 | 31.64 | c | 20.80 | 15.81 | 32.04 | |||||||
1972 | 8.83 | a | 16.07 | a | 25.61 | 32.54 | d | 41.57 | a | 53.89 | c | 53.87 | 53.07 | b | 44.43 | i | 35.86 | b | 19.27 | 8.80 | a | 31.76 | a | |||
1973 | 14.30 | a | 18.70 | a | 26.26 | 27.80 | 41.77 | 49.50 | h | 55.97 | 52.00 | h | 44.83 | 32.45 | 19.60 | 11.68 | 29.34 | b | ||||||||
1974 | 7.19 | 16.11 | 26.38 | e | 32.35 | d | ----- | z | 48.96 | c | 55.10 | 51.43 | a | 41.28 | a | 36.60 | a | 22.07 | 8.46 | c | 31.45 | a | ||||
1975 | 10.48 | 14.56 | a | 19.07 | c | 28.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 18.09 | h | ||
1976 | ----- | z | 16.24 | h | 18.37 | d | 30.12 | e | 40.26 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 13.61 | h | 29.58 | i |
1977 | 2.50 | m | 14.62 | o | 18.69 | r | 35.57 | p | ----- | z | ----- | z | ----- | z | 56.94 | o | 42.94 | n | 31.54 | e | 19.46 | d | 15.33 | p | 25.50 | j |
1978 | 5.60 | u | ----- | z | ----- | z | ----- | z | ----- | z | 47.27 | s | 51.50 | w | ----- | z | ----- | z | ----- | z | 19.50 | v | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | 22.00 | u | 35.08 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 10.96 | 16.63 | 21.82 | 31.62 | 42.99 | 52.32 | 58.15 | 55.97 | 46.07 | 34.47 | 21.55 | 13.37 | 34.48 | |||||||||||||
S.D. | 4.33 | 3.98 | 3.95 | 2.82 | 2.58 | 2.35 | 2.78 | 2.49 | 3.36 | 2.42 | 2.32 | 3.97 | 1.91 | |||||||||||||
SKEW | -0.14 | -0.15 | -0.12 | -0.39 | 0.21 | 0.64 | 0.11 | 0.20 | 0.17 | 0.13 | 0.38 | 0.29 | -0.31 | |||||||||||||
MAX | 19.87 | 24.07 | 28.10 | 35.31 | 48.48 | 58.11 | 63.14 | 60.55 | 52.13 | 38.20 | 26.30 | 22.55 | 36.53 | |||||||||||||
MIN | 0.93 | 9.29 | 14.66 | 26.30 | 38.73 | 48.87 | 53.69 | 51.43 | 40.60 | 31.54 | 17.37 | 7.16 | 32.04 | |||||||||||||
YRS | 23 | 23 | 24 | 24 | 23 | 21 | 22 | 20 | 20 | 13 | 21 | 22 | 4 |